Applications of Plane Mirrors

Q. Which of the following is not an application of plane mirror?

1. Kaleidoscope
2. Magnifying glass
3. Decoration of the wall
4. Dressing table

Q.

Which of the below are used for constructing a simple periscope?

1. Convex lens

2. Plane mirror

3. Concave lens

4. Convex mirror

Q.

Why should we use only mirrors for plane mirrors for reflection , why can't we use a glass or a book for plane surface? Even book is a regular surface.

Q. Kaleidoscope uses the concept of _____ of light.

1. refraction
2. dispersion
3. single reflection
4. multiple reflections

Q. Which of the following is not an application of plane mirror?

Q.

Solar power plant uses

1. concave mirrors

2. convex mirrors

3. plane mirrors

4. None of these

Q. Which of the following mirrors is used to make periscope?

1. Convex mirror
2. Concave mirror
3. Plane mirror
4. Cylinderical mirror

Q. Which of the following is not used for making reflectors of mirrors?

1. Silver
2. Mercury
3. Aluminium
4. Copper

Q. Periscope is made using ______ mirror.

1. concave
2. diverging
3. plane
4. convex

Q. A __________ is an optical instrument used to produce changing colour patterns.

1. telescope
2. kaleidoscope
3. periscope
4. camera

Q. Why is mercury not used in plane mirrors?

1. Harmful for health
2. Expensive
3. Inefficient reflector
4. High density

Q. Plane mirrors are used in making _________ .

1. kaleidoscope
2. rear view mirror
3. magnifying glass
4. security mirror

Q.

How can we protect our eyes while looking at a strong source of light?

1. By using a mirror.

2. By looking through a glass .

3. By using reflective glasses.

4. By using paper.